84 lines
2 KiB
Python
84 lines
2 KiB
Python
# SPDX-FileCopyrightText: 2018 Brent Rubell for Adafruit Industries
|
|
#
|
|
# SPDX-License-Identifier: MIT
|
|
|
|
"""
|
|
Wiring Check, Pi Radio w/RFM69
|
|
|
|
Learn Guide: https://learn.adafruit.com/lora-and-lorawan-for-raspberry-pi
|
|
Author: Brent Rubell for Adafruit Industries
|
|
"""
|
|
import time
|
|
import busio
|
|
from digitalio import DigitalInOut, Direction, Pull
|
|
import board
|
|
# Import the SSD1306 module.
|
|
import adafruit_ssd1306
|
|
# Import the RFM69 radio module.
|
|
import adafruit_rfm69
|
|
|
|
# Button A
|
|
btnA = DigitalInOut(board.D5)
|
|
btnA.direction = Direction.INPUT
|
|
btnA.pull = Pull.UP
|
|
|
|
# Button B
|
|
btnB = DigitalInOut(board.D6)
|
|
btnB.direction = Direction.INPUT
|
|
btnB.pull = Pull.UP
|
|
|
|
# Button C
|
|
btnC = DigitalInOut(board.D12)
|
|
btnC.direction = Direction.INPUT
|
|
btnC.pull = Pull.UP
|
|
|
|
# Create the I2C interface.
|
|
i2c = busio.I2C(board.SCL, board.SDA)
|
|
|
|
# 128x32 OLED Display
|
|
reset_pin = DigitalInOut(board.D4)
|
|
display = adafruit_ssd1306.SSD1306_I2C(128, 32, i2c, reset=reset_pin)
|
|
# Clear the display.
|
|
display.fill(0)
|
|
display.show()
|
|
width = display.width
|
|
height = display.height
|
|
|
|
|
|
# RFM69 Configuration
|
|
CS = DigitalInOut(board.CE1)
|
|
RESET = DigitalInOut(board.D25)
|
|
spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
|
|
|
|
while True:
|
|
# Draw a black filled box to clear the image.
|
|
display.fill(0)
|
|
|
|
# Attempt to set up the RFM69 Module
|
|
try:
|
|
rfm69 = adafruit_rfm69.RFM69(spi, CS, RESET, 915.0)
|
|
display.text('RFM69: Detected', 0, 0, 1)
|
|
except RuntimeError as error:
|
|
# Thrown on version mismatch
|
|
display.text('RFM69: ERROR', 0, 0, 1)
|
|
print('RFM69 Error: ', error)
|
|
|
|
# Check buttons
|
|
if not btnA.value:
|
|
# Button A Pressed
|
|
display.text('Ada', width-85, height-7, 1)
|
|
display.show()
|
|
time.sleep(0.1)
|
|
if not btnB.value:
|
|
# Button B Pressed
|
|
display.text('Fruit', width-75, height-7, 1)
|
|
display.show()
|
|
time.sleep(0.1)
|
|
if not btnC.value:
|
|
# Button C Pressed
|
|
display.text('Radio', width-65, height-7, 1)
|
|
display.show()
|
|
time.sleep(0.1)
|
|
|
|
display.show()
|
|
time.sleep(0.1)
|